- Added PIE3 support.
- Conversion routine has been split into 2 parts, with intermediate PIE structure that can be used for model preview: PIE structure is filled with dump_3ds_to_pie(), PIE structure is dumped to .pie file with dump_pie_file().
- Duplicated points removal routine has been added into dump_3ds_to_pie(). "Borrowed" from simplipie tool.
- Implement 'twosided' material handler (instead of old global hack). WARNING! It's completely untested and optional.
- Command line interface is broken, most likely. Should be fixed or removed entirely.
git-svn-id: https://warzone2100.svn.sourceforge.net/svnroot/warzone2100/trunk@10374 4a71c877-e1ca-e34f-864e-861f7616d084
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